Honestly, I think silicones are the best for preventing heat damage. Some people use oils like grapeseed as a protectant but I read somewhere that despite the high smoke point of some oils, they increase the drag (or something like that) of the flat iron which results in unexpected damage.
I hope someone has a more satisfying answer though. I haven't put a flat iron in my hair in a good while, so I am probably wrong anyways...
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last relaxer 08/08/09
all natural since 7/30/10